mirror of
https://github.com/RobTillaart/Arduino.git
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115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
#pragma once
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//
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// FILE: DAC8554.h
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// AUTHOR: Rob Tillaart
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// PURPOSE: Arduino library for DAC8554 SPI Digital Analog Convertor
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// VERSION: 0.4.1
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// DATE: 2017-12-19
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// URL: https://github.com/RobTillaart/DAC8554
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//
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#include "Arduino.h"
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#include "SPI.h"
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#define DAC8554_LIB_VERSION (F("0.4.1"))
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#define DAC8554_POWERDOWN_NORMAL 0x00
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#define DAC8554_POWERDOWN_1K 0x40
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#define DAC8554_POWERDOWN_100K 0x80
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#define DAC8554_POWERDOWN_HIGH_IMP 0xC0
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#ifndef __SPI_CLASS__
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// MBED must be tested before RP2040
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#if defined(ARDUINO_ARCH_MBED)
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#define __SPI_CLASS__ SPIClass
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#elif defined(ARDUINO_ARCH_RP2040)
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#define __SPI_CLASS__ SPIClassRP2040
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#else
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#define __SPI_CLASS__ SPIClass
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#endif
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#endif
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class DAC8554
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{
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public:
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// hardware SPI constructor
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DAC8554(uint8_t select, __SPI_CLASS__ * spi = &SPI, uint8_t address = 0);
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// software SPI constructor
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DAC8554(uint8_t select, uint8_t spiData, uint8_t spiClock, uint8_t address = 0);
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void begin();
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void bufferValue(uint8_t channel, uint16_t value);
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void setValue(uint8_t channel, uint16_t value);
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uint16_t getValue(uint8_t channel);
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// writes the value to the channel but does not affect buffered ones
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void setSingleValue(uint8_t channel, uint16_t value);
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void bufferPowerDown(uint8_t channel, uint8_t powerDownMode);
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void setPowerDown(uint8_t channel, uint8_t powerDownMode);
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uint8_t getPowerDownMode(uint8_t channel);
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void setSinglePowerDown(uint8_t channel, uint8_t powerDownMode);
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// write all buffers to all(up to 4) 8554's channel's
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void broadcastBuffer();
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// write value to all(up to 4) 8554's channel's
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void broadcastValue(uint16_t value);
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// write powerDownMode to all 8554's channel's
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void broadcastPowerDown(uint8_t powerDownMode);
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// speed in Hz
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void setSPIspeed(uint32_t speed);
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uint32_t getSPIspeed() { return _SPIspeed; };
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bool usesHWSPI() { return _hwSPI; };
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protected:
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uint8_t _dataOut = 255;
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uint8_t _clock = 255;
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uint8_t _select = 255;
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bool _hwSPI = false;
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uint8_t _address = 0;
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uint16_t _value[4]; // holds last written / buffered value per channel
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uint8_t _register[4]; // holds powerDownMode per channel
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uint32_t _SPIspeed = 16000000;
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void writeDevice(uint8_t configRegister, uint16_t value);
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void swSPI_transfer(uint8_t value);
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__SPI_CLASS__ * _mySPI;
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SPISettings _spi_settings;
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};
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/////////////////////////////////////////////////////////
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//
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// DERIVED DAC8534
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//
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#define DAC8534_POWERDOWN_NORMAL 0
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#define DAC8534_POWERDOWN_1K 1
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#define DAC8534_POWERDOWN_100K 2
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#define DAC8534_POWERDOWN_HIGH_IMP 3
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class DAC8534 : public DAC8554
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{
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public:
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DAC8534(uint8_t select, __SPI_CLASS__ * spi = &SPI, uint8_t address = 0);
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DAC8534(uint8_t select, uint8_t spiData, uint8_t spiClock, uint8_t address = 0);
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};
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// -- END OF FILE --
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